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Crack Weld - #CWLMF - Crack Weld LMF

Low modulus, very flexible.  Use for injection of cracked concrete, and wet or underwater cracks.

CRACK WELD is a two component epoxy adhesive designed for injection into nonmoving cracks in concrete. Formulations range from extremely low viscosity, to materials that may be injected into concrete that is underwater, to very flexible, rubber-like compounds.




  • Precast Members
  • Retaining Walls
  • Piers
  • Roads
  • Bridges
  • Beams & Columns
  • Pilings, etc.
  • 100% solids, conforms to VOC regulations.
  • Moisture insensitive.

Surface Preparation

Crack should be free of dust residue. If the material is to be injected, install injection ports at appropriate intervals along the crack to allow for full depth penetration. Use DBA-5 or DBA-30 to install entry ports and to seal the surface of the cracked concrete. Injection can start once DBA-5 or DBA-30 is sufficiently cured.


Mixing & Application

CRACK WELD can be injected into cracked concrete using a two component positive displacement injection machine or two component cartridge and may also be hand mixed and poured into horizontal cracks.



  • Do NOT allow the product to freeze.
  • Do NOT apply when temperature is below 50oF.
  • Do NOT apply to latex modified mortar or concrete.

Clean Up

Clean tools and equipment immediately with a suitable solvent such as xylene or lacquer thinner.



For professional use only. Epoxy systems can cause delayed dermatitis. Avoid prolonged contact with skin. See Material Safety Data Sheet for proper handling and required safety equipment.



  • Packaging: 2 component cartridges, 2 gallon units, 10 gallon units, 100 gallon units
  • Mix Ratio by Volume: 1:1
  • Color: Clear
  • Pot Life (100 Grams): 30-45 minutes
  • Tensile Strength: 400 psi (ASTM D-638)
  • Tensile Elongation: 100% (ASTM D-638)
  • Viscosity: 400-500 cps
  • Shore D Hardness: 65-A (ASTM D-2240)


2527 Lantrac Court

Decatur Georgia GA 30035

Toll Free

Phone: 800-240-1310    Fax: 800-240-7662


Phone: 770-808-0023    Fax: 770-808-6777

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